Fix spelling mistakes using codespell

This commit corrects various spelling mistakes throughout the
repository. The corrections were made automatically using `codespell`[1]
tool.

[1]: https://github.com/codespell-project/codespell

Change-Id: Icafafe827d67c9b6cc5c3f6bfb204fe425e91a32
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/test/test_item_updater.cpp b/test/test_item_updater.cpp
index 2fe1c86..e62b2a8 100644
--- a/test/test_item_updater.cpp
+++ b/test/test_item_updater.cpp
@@ -555,7 +555,7 @@
         .WillOnce(Return(true));
     itemUpdater->onUpdateDone(newVersionId, psu0);
 
-    // Now the activation should have one assoiation
+    // Now the activation should have one association
     assocs = activation->associations();
     EXPECT_EQ(1u, assocs.size());
     EXPECT_EQ(psu1, std::get<2>(assocs[0]));